serket+temple of the kings and special summon ojama king in mausoleu invader deck.. just make sure to not summon anyting more, because he can summon lava golem.. and because of the field this card generely run with, you can attack him with the ojama king..

Spjtfiee

You can absolutely spam special summon wingtortoise from the hans or graceyard every time it banishes itself

Could this card be used as a substitute to vassal if you dont have "secret pass to the treasure" or "shooting star bow - ceal".
And how good is combining with "gift of the martyr" since i dont have "union attack" nor "riryoku".
I actually use it for farming to acheive 5k+, combining two "gift of martyrs" (tribute BEWD and high level ritual).
Please give opinion on this.

no it isn't. Vassal is used because of his effect that changes battle damage to effect damage, which is why union attack works with vassal to actually deal damage. Using union attack on this thing won't make it deal damage.

But basically, use cerebrus to accumulate ATK, and last turn summon skystarray and use gift of martyr, and only thing you get less is 1000 points less because there is no effect damage, right? and you do not need riryoku, union atk or similar here. Right?

I mean, this is the only solution left cause secret pass is not available anymore?